SNACK: 3-line summary
SNACK in 3 lines
- JBL BandBox Solo and Trio will go on general sale in Japan on October 30, following crowdfunding.
- Built-in AI can remove a recorded guitar or vocal part, leaving a backing track for playing or singing practice.
- Solo is the compact option for individual practice; Trio adds a four-channel mixer for group sessions.
JBL BandBox Solo and Trio are designed to let you remove a song’s guitar part and play along with the remaining backing track through the same unit. The portable instrument amps also work as Bluetooth speakers, and are moving from crowdfunding to general retail in Japan.
Snackgirls react
Red I want to mute the guitar on a favourite game soundtrack and try playing that part myself!
Nea I’d like to hear a game soundtrack’s accompaniment on its own. I’m curious how its layers would separate, and what little arrangement details I’d notice.
Remove a part, or hear it on its own
The feature is called AI stem separation: it splits recorded music into parts such as vocals, guitar and rhythm. Music received over Bluetooth is analysed in real time inside the unit, so the separation process does not require uploading audio to the cloud.
JBL says you can connect a guitar or microphone and hear your own performance alongside the remaining backing track through the same speaker. Removing vocals offers a way to practise singing, while isolating a part lets you listen more closely to it.
Both models support the JBL One app for amp models, effects and practice tools. A USB-C connection to a PC also lets them work as audio interfaces for recording guitar sound.
A compact Solo or a mixer-equipped Trio
Solo weighs about 530g and has one 6.3mm guitar/microphone input, making it the compact option for individual practice. It also includes a 3.5mm headphone output.
Trio weighs 6.65kg and is aimed at rehearsals and sessions with multiple performers. Its four-channel mixer and large top-mounted display let you adjust the mix and settings on the unit without using the app.
General retail follows the crowdfunding run
Both models are scheduled to go on general sale in Japan on October 30, 2026. JBL’s Japanese online store prices are ¥54,890 for Solo and ¥132,000 for Trio, both including tax.
Sources and checked date: October 14, 2026 (KST)
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